shadow.c

 
#include <freerdp/config.h>
 
#include <winpr/crt.h>
#include <winpr/ssl.h>
#include <winpr/path.h>
#include <winpr/cmdline.h>
#include <winpr/winsock.h>
 
#include <winpr/tools/makecert.h>
 
#include <freerdp/server/shadow.h>
#include <freerdp/settings.h>
 
#include <freerdp/log.h>
#define TAG SERVER_TAG("shadow")
 
WINPR_ATTR_NODISCARD
static const char* boolstr(BOOL val)
{
  return val ? "TRUE" : "FALSE";
}
 
static void dump_security_settings(const rdpSettings* settings)
{
  WINPR_ASSERT(settings);
  const BOOL nla = freerdp_settings_get_bool(settings, FreeRDP_NlaSecurity);
  const BOOL ext = freerdp_settings_get_bool(settings, FreeRDP_ExtSecurity);
  const BOOL tls = freerdp_settings_get_bool(settings, FreeRDP_TlsSecurity);
  const BOOL rdp = freerdp_settings_get_bool(settings, FreeRDP_RdpSecurity);
  const BOOL aad = freerdp_settings_get_bool(settings, FreeRDP_AadSecurity);
  const BOOL rdstls = freerdp_settings_get_bool(settings, FreeRDP_RdstlsSecurity);
 
  WLog_INFO(TAG, "security: RDP:%s, TLS:%s, NLA:%s, EXT:%s, AAD:%s, RDSTLS:%s", boolstr(rdp),
            boolstr(tls), boolstr(nla), boolstr(ext), boolstr(aad), boolstr(rdstls));
}
 
int main(int argc, char** argv)
{
  int status = 0;
  DWORD dwExitCode = 0;
  COMMAND_LINE_ARGUMENT_A shadow_args[] = {
    { "log-filters", COMMAND_LINE_VALUE_REQUIRED, "<tag>:<level>[,<tag>:<level>[,...]]",
      nullptr, nullptr, -1, nullptr, "Set logger filters, see wLog(7) for details" },
    { "log-level", COMMAND_LINE_VALUE_REQUIRED, "[OFF|FATAL|ERROR|WARN|INFO|DEBUG|TRACE]",
      nullptr, nullptr, -1, nullptr, "Set the default log level, see wLog(7) for details" },
    { "port", COMMAND_LINE_VALUE_REQUIRED, "<number>", nullptr, nullptr, -1, nullptr,
      "Server port" },
    { "ipc-socket", COMMAND_LINE_VALUE_REQUIRED, "<ipc-socket>", nullptr, nullptr, -1, nullptr,
      "Server IPC socket" },
    { "bind-address", COMMAND_LINE_VALUE_REQUIRED, "<bind-address>[,<another address>, ...]",
      nullptr, nullptr, -1, nullptr,
      "An address to bind to. Use '[<ipv6>]' for IPv6 addresses, e.g. '[::1]' for "
      "localhost" },
    { "server-side-cursor", COMMAND_LINE_VALUE_BOOL, nullptr, nullptr, nullptr, -1, nullptr,
      "hide mouse cursor in RDP client." },
    { "monitors", COMMAND_LINE_VALUE_OPTIONAL, "<0,1,2...>", nullptr, nullptr, -1, nullptr,
      "Select or list monitors" },
    { "max-connections", COMMAND_LINE_VALUE_REQUIRED, "<number>", nullptr, nullptr, -1, nullptr,
      "maximum connections allowed to server, 0 to deactivate" },
    { "mouse-relative", COMMAND_LINE_VALUE_BOOL, nullptr, nullptr, nullptr, -1, nullptr,
      "enable support for relative mouse events" },
    { "rect", COMMAND_LINE_VALUE_REQUIRED, "<x,y,w,h>", nullptr, nullptr, -1, nullptr,
      "Select rectangle within monitor to share" },
    { "auth", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "Clients must authenticate" },
    { "remote-guard", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueFalse, nullptr, -1, nullptr,
      "Remote credential guard" },
    { "restricted-admin", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "Restricted Admin" },
    { "vmconnect", COMMAND_LINE_VALUE_FLAG | COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueFalse,
      nullptr, -1, nullptr, "Hyper-V console server (bind on vsock://1)" },
    { "may-view", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "Clients may view without prompt" },
    { "may-interact", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "Clients may interact without prompt" },
    { "sec", COMMAND_LINE_VALUE_REQUIRED, "<rdp|tls|nla|ext>", nullptr, nullptr, -1, nullptr,
      "force specific protocol security" },
    { "sec-rdp", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "rdp protocol security" },
    { "sec-tls", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "tls protocol security" },
    { "sec-nla", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "nla protocol security" },
    { "sec-ext", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "nla extended protocol security" },
    { "sam-file", COMMAND_LINE_VALUE_REQUIRED, "<file>", nullptr, nullptr, -1, nullptr,
      "NTLM SAM file for NLA authentication" },
    { "keytab", COMMAND_LINE_VALUE_REQUIRED, "<file>", nullptr, nullptr, -1, nullptr,
      "Kerberos keytab file for NLA authentication" },
    { "ccache", COMMAND_LINE_VALUE_REQUIRED, "<file>", nullptr, nullptr, -1, nullptr,
      "Kerberos host ccache file for NLA authentication" },
    { "tls-secrets-file", COMMAND_LINE_VALUE_REQUIRED, "<file>", nullptr, nullptr, -1, nullptr,
      "file where tls secrets shall be stored" },
    { "nsc", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "Allow NSC codec" },
    { "rfx", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "Allow RFX surface bits" },
    { "gfx", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "Allow GFX pipeline" },
#if defined(WITH_GFX_AV1)
    { "gfx-av1", COMMAND_LINE_VALUE_OPTIONAL, "[:profile:[low|high|0|1]|off]", BoolValueTrue,
      nullptr, -1, nullptr, "Allow GFX pipeline AV1 codec extension" },
#endif
    { "gfx-progressive", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "Allow GFX progressive codec" },
    { "gfx-rfx", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "Allow GFX RFX codec" },
    { "gfx-planar", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "Allow GFX planar codec" },
    { "gfx-avc420", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "Allow GFX AVC420 codec" },
    { "gfx-avc444", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueTrue, nullptr, -1, nullptr,
      "Allow GFX AVC444 codec" },
    { "bitmap-compat", COMMAND_LINE_VALUE_BOOL, nullptr, BoolValueFalse, nullptr, -1, nullptr,
      "Limit BitmapUpdate to 1 rectangle (fixes broken windows 11 24H2 clients)" },
    { "version", COMMAND_LINE_VALUE_FLAG | COMMAND_LINE_PRINT_VERSION, nullptr, nullptr,
      nullptr, -1, nullptr, "Print version" },
    { "buildconfig", COMMAND_LINE_VALUE_FLAG | COMMAND_LINE_PRINT_BUILDCONFIG, nullptr, nullptr,
      nullptr, -1, nullptr, "Print the build configuration" },
    { "help", COMMAND_LINE_VALUE_FLAG | COMMAND_LINE_PRINT_HELP, nullptr, nullptr, nullptr, -1,
      "?", "Print help" },
    { nullptr, 0, nullptr, nullptr, nullptr, -1, nullptr, nullptr }
  };
 
  shadow_subsystem_set_entry_builtin(nullptr);
 
  rdpShadowServer* server = shadow_server_new();
 
  if (!server)
  {
    status = -1;
    WLog_ERR(TAG, "Server new failed");
    goto fail;
  }
 
  {
    rdpSettings* settings = server->settings;
    WINPR_ASSERT(settings);
 
    if (!freerdp_settings_set_bool(settings, FreeRDP_NlaSecurity, TRUE) ||
        !freerdp_settings_set_bool(settings, FreeRDP_ExtSecurity, TRUE) ||
        !freerdp_settings_set_bool(settings, FreeRDP_TlsSecurity, TRUE) ||
        !freerdp_settings_set_bool(settings, FreeRDP_RdpSecurity, TRUE))
      goto fail;
 
    /* By default allow all GFX modes.
     * This can be changed with command line flags [+|-]gfx-CODEC
     */
    if (!freerdp_settings_set_uint32(settings, FreeRDP_ColorDepth, 32) ||
        !freerdp_settings_set_bool(settings, FreeRDP_NSCodec, TRUE) ||
        !freerdp_settings_set_bool(settings, FreeRDP_RemoteFxCodec, TRUE) ||
        !freerdp_settings_set_bool(settings, FreeRDP_RemoteFxImageCodec, TRUE) ||
        !freerdp_settings_set_uint32(settings, FreeRDP_RemoteFxRlgrMode, RLGR3) ||
        !freerdp_settings_set_bool(settings, FreeRDP_GfxH264, TRUE) ||
        !freerdp_settings_set_bool(settings, FreeRDP_GfxAVC444, TRUE) ||
        !freerdp_settings_set_bool(settings, FreeRDP_GfxAVC444v2, TRUE) ||
        !freerdp_settings_set_bool(settings, FreeRDP_GfxProgressive, TRUE) ||
        !freerdp_settings_set_bool(settings, FreeRDP_GfxProgressiveV2, TRUE))
      goto fail;
 
    if (!freerdp_settings_set_bool(settings, FreeRDP_MouseUseRelativeMove, FALSE) ||
        !freerdp_settings_set_bool(settings, FreeRDP_HasRelativeMouseEvent, FALSE))
      goto fail;
  }
 
  if ((status = shadow_server_parse_command_line(server, argc, argv, shadow_args)) < 0)
  {
    status = shadow_server_command_line_status_print(server, argc, argv, status, shadow_args);
    goto fail;
  }
 
  if (server->authentication)
    dump_security_settings(server->settings);
  else
    WLog_INFO(TAG, "authentication: disabled");
 
  if ((status = shadow_server_init(server)) < 0)
  {
    WLog_ERR(TAG, "Server initialization failed.");
    goto fail;
  }
 
  if ((status = shadow_server_start(server)) < 0)
  {
    WLog_ERR(TAG, "Failed to start server.");
    goto fail;
  }
 
#ifdef _WIN32
  {
    MSG msg = WINPR_C_ARRAY_INIT;
    while (GetMessage(&msg, 0, 0, 0))
    {
      TranslateMessage(&msg);
      DispatchMessage(&msg);
    }
  }
#endif
 
  (void)WaitForSingleObject(server->thread, INFINITE);
 
  if (!GetExitCodeThread(server->thread, &dwExitCode))
    status = -1;
  else
    status = (int)dwExitCode;
 
fail:
  shadow_server_uninit(server);
  shadow_server_free(server);
  return status;
}